effective modern c

[Part of modern software engineering handouts] The process of software development is the process of transmitting, transforming, implementing, twisting or losing "what users need most" in the following chain. What users need most> Expressed by the user> What the software team can understand (boss/PM) + the team's business goals> Specifically expressed by software team members (PM write spec)> Under various constraints, execute the specific expressions

Instructor Xin's Blog is here: Software Engineering Education learned by modern software engineering Then I read the opinions of many students. When I think of High School, the teacher taught me that a good argumentative paper must show my opinion at the beginning. (Well, that's to cope with the college entrance examination. I am far away]. However, in my opinion,Not totally agreeThe opinions of instructors and some students. Over-emphasized"XI"Propor

###Before using the JS-Clipboarddata object of the Clipboard object can be implemented to achieve paste replication, but the kind of only support ie. To find the JQ of a plug-in Zclip, but the online statement is the use of flesh to achieve, I use the later can be achieved, but the face of my self AH table in the TD there are many to achieve paste replication, there will be problems.So, just find another plug-in of this jqery now, relatively better, can support the mobile side of the###Plugin we

] (intAintb)int{ *j =101; $ returnA + B +J;Panax Notoginseng }; -cout the,Ten) "J:"Endl; the // + Avectorint> arr = {1,2,3,4,5 }; the intTotal =0; + For_each (Begin (ARR), End (arr), -[] (intx)int{ $ returnTotal + =x; $ }); -cout "Total:"Endl; - // thevectorint> Sort_arr = {2,-1,3,4,6,7,2, to }; -cout "Unsort:";Wuyi For_each (Begin (Sort_arr), End (Sort_arr), the[](intx) { -cout " "; }); Wucout Endl; - sort (Begin (Sort_arr), End (Sort_arr), About[](intAintb

On May 6, Google Developer Center launched a WEB Development Best Practices Handbook. Bole online resource channel after the resource has been compiled, a number of friends interested in WEB development have been invited to participate in the translation manual.Since the translator's friends are almost always employed, are in the spare part of the work, each translation progress will be different (please understand), so the Chinese version of the manual will not be published in the English versi

, and the same open file 2.1.3, Process terminationConditions that cause the process to terminate1) normal exit 2) error exit 3) fatal error 4) killed by other process 2.1.4, Hierarchy of processes1) process has only one parent process (but can have 0, 1, multiple child processes)2) in Unix, the process and all its children and descendants form a process group (the signal received by the current process is passed to all members in the process group) 2.1.5, status of the process

then the decltype specifies T b) If the value category of expression is lvalueand then the decltype specifies T c) Otherwise, decltype specifies T Except for the very special parentheses, the type of decltype (a variable, a name-only expression) is always a reference. If it is a simple expression (only the name of the Objec.member is simple), then Decltype is the type that returns it.For any other more complex expression, follow 2),Here is an English connection for reference to what is Lvalue

template expression is an lvalue, then both T and Paramtype are deduced as lvalue references, where the reference folding syntax is used. If the passed-in template expression is an rvalue, then the T-type deduction follows the CASE1 rule. Case 3:paramtype is neither a Pointer nor a Referencevoid f (T param); If the passed-in template expression type is a reference, the type of T ignores the reference. If the remainder of the expression is const,t and ignored, Volatile,t

returned.Auto Createinitlist () {return123 }; Error: Cannot infer the type of}// {1, 2, 3}Similarly, the rules apply to the parameter type specifier of the lambda that is used by auto for c++14, which produces a generic lambda (generic lambda).=[v] (const//123 }); // the error cannot be deduced. Type of //{1, 2, 3}The end result is that the auto type deduction and the template type deduction are identical

-style force conversion. It can convert any built-in data type to any other data type, or can convert any pointer type to another type. It can even transform the built-in data type into pointers, There is no need to consider type safety or constant situations. There is absolutely no need. Intent to perform a low-level transition, the actual action depends on the compiler, which means that he is not portable 4. dynamic_cast: (1) The other three kinds are completed at compile time, dynamic_cast is

, was the chief operating officer of Quigo (advertising technology start-up, later acquired by AOL), responsible for leading product strategy, product management, technology development and customer service. He has worked on ebay for 6 years and has served as vice president of Technology, chief technology officer and company executive.Michael Fisher, aKF's start-up partner, was previously chief technology officer at Quigo, and PayPal was the vice president of engineering and architecture. He spe

Bytecode caching can store pre-compiled PHP code* If you are compiling PHP yourself./configure--enable-opcacheAfter compiling the php.ini.Zend_extension=opcache.soView the directory where the PHP extension residesPhp-config--extension-dir/applications/xampp/xamppfiles/lib/php/extensions/no-debug-non-zts-20170718Warning: If you use Xdebug, the php.ini file must load the Zend Opcache extension before loading Xdebug* Local test configuration Zend Opcachemkdir./configcp/applications/xampp//xamppfile

variable I of type int is-10 and the value of the variable U of type unsigned int is 10. If you compare I and U with the "However, before comparison, the variable i is converted to the unsigned int type. Since negative numbers cannot be represented as unsigned, the conversion is no longer 10, but the result of adding 4 294 967 296i.e. 4 294 967 286 Thus I Therefore, it is best to avoid using unsigned integers, especially if you don't mix it with signed integersIf the number is negative, how do

in Clause 4.But at the same time do not lose the attention to the overall situation, decltype (whether used independently or with auto) the results of the deduction may be occasionally surprising, but this does not occur frequently, usually, the results of decltype and the type you expect, This is especially true when Decltype is applied to variable names, because in this case, what Decltype does is provide the declaration type of the variable.Please remember Decltype almost always ret

front of the class module code __metaclass__ = Type (mentioned earlier). Their classes inherit directly or indirectly from the built-in class object. If you do not need to be compatible with legacy classes, the old version of the class is maintained as a new class.Of course, there are no such problems in Python3, because all classes are subclasses of the object class (implicit). code example: classcc: #经典类 def__init__ (self): NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBSP;PASSCLASSNBSP;CCN

Poi can easily launch an index.js file simply by running the poi command. This would launch a dev-server and automatically reload whenever you make changes. You can also all package npm install need and import it right away.Install:NPM Install-g POICode:// Src/index.js ' Rxjs '; observable.intervable(+) Subscribe ( = > document.getElementById ("app "). InnerHTML = ' ')Run:Poi Src/index--port 3000[Poi] Use Poi to Build a index.js with modern Jav

scripting to compensate for this missing feature. Execute this router script before each HTTP request is processed. It works just like the. htaccess file.php -S localhost:4000 router.phpThe router script, such as a request for a picture, returns the corresponding picture, but the request to the HTML file displays "Welcome to PHP":Determine if the server is built-inDisadvantage: Can not be used in production environment, can only be used for local development. Poor performance. Only one

(Xinhua) The latest study by experts found that the Chinese have more than 22,000 surnames in ancient and modern times. It is so far there The statistics record of the most Chinese surnames. These 22,000 surnames also include the Chinese surnames of the ethnic minorities who belonged to China on the territory of the past. With the change of the Times Moved, and many surnames had disappeared. The contemporary Chinese are using about 3,500 Han. Shunda

By chance, I saw Professor Cai's Open class in Zhejiang University. The teacher takes several mathematics masters as the key point and the entry point introduces the mathematics in the different period, the development of different countries, very novel and interesting. Nothing is perfect, of course. If you can focus more prominently. Should listen carefully, if can combine other materials, such as "Ancient and modern Mathematical thought", the BBC's

all blame the children today, and the development of the Times have a close relationship. In particular, now is the information society, computer keyboard typing to replace the pen, manuscript, long time is inevitably unfamiliar, writing bad has become a very common phenomenon. However, if the university students in the grasp of modern information technology, can write a good word benefits a lot, especially in the test writing to the judges to bring